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The effects of caffeine on option generation and subsequent choice.

By Jan Haüsser, Alexander Schlemmer, S. Kaiser, Annemarie Kalis and A. Mojzisch

Abstract

Rationale Although the effects of caffeine on basic cognitive functions are well-known, its effects on more complex decision making, particularly on option generation, is yet to be explored. Objective We examined the effects of caffeine on option generation in decision making using everyday life decisional situations. Methods In a double-blind placebo-controlled experiment, participants (N = 47) either received 300 mg of caffeine or a placebo. Participants had to generate choice options (things they could do) for a series of high and low familiar real-world scenarios and, subsequently, to decide among these options. Results Analyses revealed that participants in the caffeine condition generated significantly fewer options than participants in the placebo condition. Moreover, caffeine significantly reduced the option generation onset time, that is, participants in the caffeine condition generated their first option significantly faster than participants in the placebo condition. Regarding subsequent choice, we found evidence supporting the “take-the-first” heuristic, that is, the tendency to select the first generated option. This tendency was neither affected by caffeine nor by the familiarity of the scenarios. Conclusions Caffeine results in fewer options generated in unconstrained real-life decision-making situations and decreases generation onset times. Psychopharmacology Psychopharmacology Look Inside Article Metrics 5 Social Shares Other actions Export citation Register for Journal Updates About This Journal Reprints and Permissions Add to Papers Share Share this content on Facebook Share this content on Twitter Share this content on LinkedI

Topics: Caffeine, Option generation, Decision making, Take-the-first heuristic
Year: 2014
OAI identifier: oai:dspace.library.uu.nl:1874/304762
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